I am a member of a family trust fund that my brother sister and I inherited from our father, my sisters trustee can I get any information at all on it

Hello.  As a beneficiary of a Trust, you are entitled to certain information as required by Michigan law.  The Trustee of the Trust is required to notify you within 63 days of their appointment that you are a beneficiary, provide a description of what your beneficial interest is, and should provide an inventory of all of the assets.   Generally, you should also be entitled to receive regular accountings and/or reasonably request them.